Sand sorting device for civic building

The invention discloses a sand sorting device for a civic building. The device comprises a conveyor frame, a feeding plate, a machine body, a machine door and a screening chamber. A conveyor belt is mounted on the inner side of the conveyor frame and a conveyor touch screen is embedded onto the outer wall of the conveyor frame; the feeding plate is mounted at the tail end on one side of the conveyor frame, and the feeding plate is embedded into a material port; a sorter touch screen display assembly is embedded onto the outer wall of the machine door, the conveyor belt and an electrically controlled flexible supporting leg are separately electrically connected to the conveyor touch screen display, the machine door is connected to the machine body through a hinge, discharge openings are formed in the outer walls on two sides of the machine body, the electrically controlled flexible supporting leg is mounted in the bottom of the conveyor frame, and a motor is mounted in the bottom of the machine body. A sound-p